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Finding the Fourth Proportional to 157,473.76, 236,085.90 and 78,547.36

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Solution

The fourth proportional to 157,473.76, 236,085.90 and 78,547.36 is: 117,758.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,473.76 : 236,085.90 = 78,547.36 : x
  2. Step 2: Convert to fraction form
    157,473.76/236,085.90 = 78,547.36/x
  3. Step 3: Cross multiply
    157,473.76x = 236,085.90 × 78,547.36
  4. Step 4: Simplify right side
    157,473.76x = 18,543,924,178.22
  5. Step 5: Solve for x
    x = 18,543,924,178.22/157,473.76
  6. Step 6: Final answer
    x = 117,758.82

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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.