Home / 125,510.04-173,221.98-75,213.72

Finding the Fourth Proportional to 125,510.04, 173,221.98 and 75,213.72

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Solution

The fourth proportional to 125,510.04, 173,221.98 and 75,213.72 is: 103,805.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,510.04 : 173,221.98 = 75,213.72 : x
  2. Step 2: Convert to fraction form
    125,510.04/173,221.98 = 75,213.72/x
  3. Step 3: Cross multiply
    125,510.04x = 173,221.98 × 75,213.72
  4. Step 4: Simplify right side
    125,510.04x = 13,028,669,501.57
  5. Step 5: Solve for x
    x = 13,028,669,501.57/125,510.04
  6. Step 6: Final answer
    x = 103,805.80

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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.