Home / 124,473.40-186,710.10-77,126.20

Finding the Fourth Proportional to 124,473.40, 186,710.10 and 77,126.20

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Solution

The fourth proportional to 124,473.40, 186,710.10 and 77,126.20 is: 115,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,473.40 : 186,710.10 = 77,126.20 : x
  2. Step 2: Convert to fraction form
    124,473.40/186,710.10 = 77,126.20/x
  3. Step 3: Cross multiply
    124,473.40x = 186,710.10 × 77,126.20
  4. Step 4: Simplify right side
    124,473.40x = 14,400,240,514.62
  5. Step 5: Solve for x
    x = 14,400,240,514.62/124,473.40
  6. Step 6: Final answer
    x = 115,689.30

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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.