Home / 156,320.04-215,721.36-84,702

Finding the Fourth Proportional to 156,320.04, 215,721.36 and 84,702

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Solution

The fourth proportional to 156,320.04, 215,721.36 and 84,702 is: 116,888.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,320.04 : 215,721.36 = 84,702 : x
  2. Step 2: Convert to fraction form
    156,320.04/215,721.36 = 84,702/x
  3. Step 3: Cross multiply
    156,320.04x = 215,721.36 × 84,702
  4. Step 4: Simplify right side
    156,320.04x = 18,272,030,634.72
  5. Step 5: Solve for x
    x = 18,272,030,634.72/156,320.04
  6. Step 6: Final answer
    x = 116,888.60

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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.