Home / 124,840.10-187,377.60-65,718.20

Finding the Fourth Proportional to 124,840.10, 187,377.60 and 65,718.20

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Solution

The fourth proportional to 124,840.10, 187,377.60 and 65,718.20 is: 98,639.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,840.10 : 187,377.60 = 65,718.20 : x
  2. Step 2: Convert to fraction form
    124,840.10/187,377.60 = 65,718.20/x
  3. Step 3: Cross multiply
    124,840.10x = 187,377.60 × 65,718.20
  4. Step 4: Simplify right side
    124,840.10x = 12,314,118,592.32
  5. Step 5: Solve for x
    x = 12,314,118,592.32/124,840.10
  6. Step 6: Final answer
    x = 98,639.13

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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.