Home / 102,429.90-153,666.45-43,235.10

Finding the Fourth Proportional to 102,429.90, 153,666.45 and 43,235.10

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Solution

The fourth proportional to 102,429.90, 153,666.45 and 43,235.10 is: 64,861.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,429.90 : 153,666.45 = 43,235.10 : x
  2. Step 2: Convert to fraction form
    102,429.90/153,666.45 = 43,235.10/x
  3. Step 3: Cross multiply
    102,429.90x = 153,666.45 × 43,235.10
  4. Step 4: Simplify right side
    102,429.90x = 6,643,784,332.40
  5. Step 5: Solve for x
    x = 6,643,784,332.40/102,429.90
  6. Step 6: Final answer
    x = 64,861.77

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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.