Home / 124,740.08-187,228.40-77,211.39

Finding the Fourth Proportional to 124,740.08, 187,228.40 and 77,211.39

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Solution

The fourth proportional to 124,740.08, 187,228.40 and 77,211.39 is: 115,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,740.08 : 187,228.40 = 77,211.39 : x
  2. Step 2: Convert to fraction form
    124,740.08/187,228.40 = 77,211.39/x
  3. Step 3: Cross multiply
    124,740.08x = 187,228.40 × 77,211.39
  4. Step 4: Simplify right side
    124,740.08x = 14,456,165,011.48
  5. Step 5: Solve for x
    x = 14,456,165,011.48/124,740.08
  6. Step 6: Final answer
    x = 115,890.30

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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.