Home / 145,746.32-218,619.52-112,514.90

Finding the Fourth Proportional to 145,746.32, 218,619.52 and 112,514.90

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Solution

The fourth proportional to 145,746.32, 218,619.52 and 112,514.90 is: 168,772.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,746.32 : 218,619.52 = 112,514.90 : x
  2. Step 2: Convert to fraction form
    145,746.32/218,619.52 = 112,514.90/x
  3. Step 3: Cross multiply
    145,746.32x = 218,619.52 × 112,514.90
  4. Step 4: Simplify right side
    145,746.32x = 24,597,953,430.85
  5. Step 5: Solve for x
    x = 24,597,953,430.85/145,746.32
  6. Step 6: Final answer
    x = 168,772.38

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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.