Home / 102,521.10-153,781.65-92,679.60

Finding the Fourth Proportional to 102,521.10, 153,781.65 and 92,679.60

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Solution

The fourth proportional to 102,521.10, 153,781.65 and 92,679.60 is: 139,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,521.10 : 153,781.65 = 92,679.60 : x
  2. Step 2: Convert to fraction form
    102,521.10/153,781.65 = 92,679.60/x
  3. Step 3: Cross multiply
    102,521.10x = 153,781.65 × 92,679.60
  4. Step 4: Simplify right side
    102,521.10x = 14,252,421,809.34
  5. Step 5: Solve for x
    x = 14,252,421,809.34/102,521.10
  6. Step 6: Final answer
    x = 139,019.40

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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.