Home / 102,388.40-141,307.44-57,070.52

Finding the Fourth Proportional to 102,388.40, 141,307.44 and 57,070.52

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Solution

The fourth proportional to 102,388.40, 141,307.44 and 57,070.52 is: 78,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,388.40 : 141,307.44 = 57,070.52 : x
  2. Step 2: Convert to fraction form
    102,388.40/141,307.44 = 57,070.52/x
  3. Step 3: Cross multiply
    102,388.40x = 141,307.44 × 57,070.52
  4. Step 4: Simplify right side
    102,388.40x = 8,064,489,080.67
  5. Step 5: Solve for x
    x = 8,064,489,080.67/102,388.40
  6. Step 6: Final answer
    x = 78,763.70

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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.