Home / 102,898.23-142,000.10-57,576.30

Finding the Fourth Proportional to 102,898.23, 142,000.10 and 57,576.30

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Solution

The fourth proportional to 102,898.23, 142,000.10 and 57,576.30 is: 79,455.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,898.23 : 142,000.10 = 57,576.30 : x
  2. Step 2: Convert to fraction form
    102,898.23/142,000.10 = 57,576.30/x
  3. Step 3: Cross multiply
    102,898.23x = 142,000.10 × 57,576.30
  4. Step 4: Simplify right side
    102,898.23x = 8,175,840,069.75
  5. Step 5: Solve for x
    x = 8,175,840,069.75/102,898.23
  6. Step 6: Final answer
    x = 79,455.59

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1.5x scale

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.