Home / 112,421.16-155,140.10-62,119.08

Finding the Fourth Proportional to 112,421.16, 155,140.10 and 62,119.08

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Solution

The fourth proportional to 112,421.16, 155,140.10 and 62,119.08 is: 85,723.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,421.16 : 155,140.10 = 62,119.08 : x
  2. Step 2: Convert to fraction form
    112,421.16/155,140.10 = 62,119.08/x
  3. Step 3: Cross multiply
    112,421.16x = 155,140.10 × 62,119.08
  4. Step 4: Simplify right side
    112,421.16x = 9,637,160,283.11
  5. Step 5: Solve for x
    x = 9,637,160,283.11/112,421.16
  6. Step 6: Final answer
    x = 85,723.72

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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.