Home / 125,011.13-172,515.35-68,422.50

Finding the Fourth Proportional to 125,011.13, 172,515.35 and 68,422.50

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Solution

The fourth proportional to 125,011.13, 172,515.35 and 68,422.50 is: 94,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,011.13 : 172,515.35 = 68,422.50 : x
  2. Step 2: Convert to fraction form
    125,011.13/172,515.35 = 68,422.50/x
  3. Step 3: Cross multiply
    125,011.13x = 172,515.35 × 68,422.50
  4. Step 4: Simplify right side
    125,011.13x = 11,803,931,706.43
  5. Step 5: Solve for x
    x = 11,803,931,706.43/125,011.13
  6. Step 6: Final answer
    x = 94,423.05

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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.