Home / 112,565,501.70-155,128,090.05-90,213,098.10

Finding the Fourth Proportional to 112,565,501.70, 155,128,090.05 and 90,213,098.10

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Solution

The fourth proportional to 112,565,501.70, 155,128,090.05 and 90,213,098.10 is: 124,323,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,565,501.70 : 155,128,090.05 = 90,213,098.10 : x
  2. Step 2: Convert to fraction form
    112,565,501.70/155,128,090.05 = 90,213,098.10/x
  3. Step 3: Cross multiply
    112,565,501.70x = 155,128,090.05 × 90,213,098.10
  4. Step 4: Simplify right side
    112,565,501.70x = 13,994,585,605,746,284
  5. Step 5: Solve for x
    x = 13,994,585,605,746,284/112,565,501.70
  6. Step 6: Final answer
    x = 124,323,930.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.