Home / 112,739.41-155,582.63-61,752.15

Finding the Fourth Proportional to 112,739.41, 155,582.63 and 61,752.15

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Solution

The fourth proportional to 112,739.41, 155,582.63 and 61,752.15 is: 85,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,739.41 : 155,582.63 = 61,752.15 : x
  2. Step 2: Convert to fraction form
    112,739.41/155,582.63 = 61,752.15/x
  3. Step 3: Cross multiply
    112,739.41x = 155,582.63 × 61,752.15
  4. Step 4: Simplify right side
    112,739.41x = 9,607,561,433.81
  5. Step 5: Solve for x
    x = 9,607,561,433.81/112,739.41
  6. Step 6: Final answer
    x = 85,219.19

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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.