Home / 145,534.58-218,042.15-78,932.23

Finding the Fourth Proportional to 145,534.58, 218,042.15 and 78,932.23

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Solution

The fourth proportional to 145,534.58, 218,042.15 and 78,932.23 is: 118,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,534.58 : 218,042.15 = 78,932.23 : x
  2. Step 2: Convert to fraction form
    145,534.58/218,042.15 = 78,932.23/x
  3. Step 3: Cross multiply
    145,534.58x = 218,042.15 × 78,932.23
  4. Step 4: Simplify right side
    145,534.58x = 17,210,552,785.72
  5. Step 5: Solve for x
    x = 17,210,552,785.72/145,534.58
  6. Step 6: Final answer
    x = 118,257.48

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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.