Home / 121,416.10-182,124.15-74,176.90

Finding the Fourth Proportional to 121,416.10, 182,124.15 and 74,176.90

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Solution

The fourth proportional to 121,416.10, 182,124.15 and 74,176.90 is: 111,265.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,416.10 : 182,124.15 = 74,176.90 : x
  2. Step 2: Convert to fraction form
    121,416.10/182,124.15 = 74,176.90/x
  3. Step 3: Cross multiply
    121,416.10x = 182,124.15 × 74,176.90
  4. Step 4: Simplify right side
    121,416.10x = 13,509,404,862.14
  5. Step 5: Solve for x
    x = 13,509,404,862.14/121,416.10
  6. Step 6: Final answer
    x = 111,265.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.