Home / 102,089.63-140,886.14-56,769.53

Finding the Fourth Proportional to 102,089.63, 140,886.14 and 56,769.53

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Solution

The fourth proportional to 102,089.63, 140,886.14 and 56,769.53 is: 78,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,089.63 : 140,886.14 = 56,769.53 : x
  2. Step 2: Convert to fraction form
    102,089.63/140,886.14 = 56,769.53/x
  3. Step 3: Cross multiply
    102,089.63x = 140,886.14 × 56,769.53
  4. Step 4: Simplify right side
    102,089.63x = 7,998,038,963.04
  5. Step 5: Solve for x
    x = 7,998,038,963.04/102,089.63
  6. Step 6: Final answer
    x = 78,343.30

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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.