Home / 124,000.10-186,000.15-86,675.30

Finding the Fourth Proportional to 124,000.10, 186,000.15 and 86,675.30

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Solution

The fourth proportional to 124,000.10, 186,000.15 and 86,675.30 is: 130,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,000.10 : 186,000.15 = 86,675.30 : x
  2. Step 2: Convert to fraction form
    124,000.10/186,000.15 = 86,675.30/x
  3. Step 3: Cross multiply
    124,000.10x = 186,000.15 × 86,675.30
  4. Step 4: Simplify right side
    124,000.10x = 16,121,618,801.30
  5. Step 5: Solve for x
    x = 16,121,618,801.30/124,000.10
  6. Step 6: Final answer
    x = 130,012.95

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1.5x scale

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.