Home / 156,473.12-215,931.02-84,852.28

Finding the Fourth Proportional to 156,473.12, 215,931.02 and 84,852.28

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Solution

The fourth proportional to 156,473.12, 215,931.02 and 84,852.28 is: 117,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,473.12 : 215,931.02 = 84,852.28 : x
  2. Step 2: Convert to fraction form
    156,473.12/215,931.02 = 84,852.28/x
  3. Step 3: Cross multiply
    156,473.12x = 215,931.02 × 84,852.28
  4. Step 4: Simplify right side
    156,473.12x = 18,322,239,822.68
  5. Step 5: Solve for x
    x = 18,322,239,822.68/156,473.12
  6. Step 6: Final answer
    x = 117,095.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.