Home / 124,739.08-187,226.90-77,210.39

Finding the Fourth Proportional to 124,739.08, 187,226.90 and 77,210.39

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Solution

The fourth proportional to 124,739.08, 187,226.90 and 77,210.39 is: 115,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,739.08 : 187,226.90 = 77,210.39 : x
  2. Step 2: Convert to fraction form
    124,739.08/187,226.90 = 77,210.39/x
  3. Step 3: Cross multiply
    124,739.08x = 187,226.90 × 77,210.39
  4. Step 4: Simplify right side
    124,739.08x = 14,455,861,967.49
  5. Step 5: Solve for x
    x = 14,455,861,967.49/124,739.08
  6. Step 6: Final answer
    x = 115,888.80

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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.