Home / 112,400.16-155,110.42-61,411.80

Finding the Fourth Proportional to 112,400.16, 155,110.42 and 61,411.80

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Solution

The fourth proportional to 112,400.16, 155,110.42 and 61,411.80 is: 84,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,400.16 : 155,110.42 = 61,411.80 : x
  2. Step 2: Convert to fraction form
    112,400.16/155,110.42 = 61,411.80/x
  3. Step 3: Cross multiply
    112,400.16x = 155,110.42 × 61,411.80
  4. Step 4: Simplify right side
    112,400.16x = 9,525,610,090.96
  5. Step 5: Solve for x
    x = 9,525,610,090.96/112,400.16
  6. Step 6: Final answer
    x = 84,747.30

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1.5x scale

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.