Home / 125,730.12-173,417.06-85,373.80

Finding the Fourth Proportional to 125,730.12, 173,417.06 and 85,373.80

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Solution

The fourth proportional to 125,730.12, 173,417.06 and 85,373.80 is: 117,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,730.12 : 173,417.06 = 85,373.80 : x
  2. Step 2: Convert to fraction form
    125,730.12/173,417.06 = 85,373.80/x
  3. Step 3: Cross multiply
    125,730.12x = 173,417.06 × 85,373.80
  4. Step 4: Simplify right side
    125,730.12x = 14,805,273,397.03
  5. Step 5: Solve for x
    x = 14,805,273,397.03/125,730.12
  6. Step 6: Final answer
    x = 117,754.39

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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.