Home / 102,681.60-154,011.96-69,614.16

Finding the Fourth Proportional to 102,681.60, 154,011.96 and 69,614.16

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Solution

The fourth proportional to 102,681.60, 154,011.96 and 69,614.16 is: 104,414.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,681.60 : 154,011.96 = 69,614.16 : x
  2. Step 2: Convert to fraction form
    102,681.60/154,011.96 = 69,614.16/x
  3. Step 3: Cross multiply
    102,681.60x = 154,011.96 × 69,614.16
  4. Step 4: Simplify right side
    102,681.60x = 10,721,413,225.35
  5. Step 5: Solve for x
    x = 10,721,413,225.35/102,681.60
  6. Step 6: Final answer
    x = 104,414.16

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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.