Home / 102,693.15-141,702.53-57,365.53

Finding the Fourth Proportional to 102,693.15, 141,702.53 and 57,365.53

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Solution

The fourth proportional to 102,693.15, 141,702.53 and 57,365.53 is: 79,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,693.15 : 141,702.53 = 57,365.53 : x
  2. Step 2: Convert to fraction form
    102,693.15/141,702.53 = 57,365.53/x
  3. Step 3: Cross multiply
    102,693.15x = 141,702.53 × 57,365.53
  4. Step 4: Simplify right side
    102,693.15x = 8,128,840,094.71
  5. Step 5: Solve for x
    x = 8,128,840,094.71/102,693.15
  6. Step 6: Final answer
    x = 79,156.60

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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.