Home / 156,965.04-216,613.29-85,346.61

Finding the Fourth Proportional to 156,965.04, 216,613.29 and 85,346.61

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Solution

The fourth proportional to 156,965.04, 216,613.29 and 85,346.61 is: 117,779.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.04 : 216,613.29 = 85,346.61 : x
  2. Step 2: Convert to fraction form
    156,965.04/216,613.29 = 85,346.61/x
  3. Step 3: Cross multiply
    156,965.04x = 216,613.29 × 85,346.61
  4. Step 4: Simplify right side
    156,965.04x = 18,487,210,228.57
  5. Step 5: Solve for x
    x = 18,487,210,228.57/156,965.04
  6. Step 6: Final answer
    x = 117,779.16

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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.