Home / 185,700.90-278,514.45-90,890.35

Finding the Fourth Proportional to 185,700.90, 278,514.45 and 90,890.35

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Solution

The fourth proportional to 185,700.90, 278,514.45 and 90,890.35 is: 136,317.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,700.90 : 278,514.45 = 90,890.35 : x
  2. Step 2: Convert to fraction form
    185,700.90/278,514.45 = 90,890.35/x
  3. Step 3: Cross multiply
    185,700.90x = 278,514.45 × 90,890.35
  4. Step 4: Simplify right side
    185,700.90x = 25,314,276,710.92
  5. Step 5: Solve for x
    x = 25,314,276,710.92/185,700.90
  6. Step 6: Final answer
    x = 136,317.47

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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.