Home / 125,154.21-172,711.77-67,792.20

Finding the Fourth Proportional to 125,154.21, 172,711.77 and 67,792.20

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Solution

The fourth proportional to 125,154.21, 172,711.77 and 67,792.20 is: 93,552.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,154.21 : 172,711.77 = 67,792.20 : x
  2. Step 2: Convert to fraction form
    125,154.21/172,711.77 = 67,792.20/x
  3. Step 3: Cross multiply
    125,154.21x = 172,711.77 × 67,792.20
  4. Step 4: Simplify right side
    125,154.21x = 11,708,510,854.19
  5. Step 5: Solve for x
    x = 11,708,510,854.19/125,154.21
  6. Step 6: Final answer
    x = 93,552.67

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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.