Home / 156,777.48-216,349.34-85,155.93

Finding the Fourth Proportional to 156,777.48, 216,349.34 and 85,155.93

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Solution

The fourth proportional to 156,777.48, 216,349.34 and 85,155.93 is: 117,513.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,777.48 : 216,349.34 = 85,155.93 : x
  2. Step 2: Convert to fraction form
    156,777.48/216,349.34 = 85,155.93/x
  3. Step 3: Cross multiply
    156,777.48x = 216,349.34 × 85,155.93
  4. Step 4: Simplify right side
    156,777.48x = 18,423,428,826.81
  5. Step 5: Solve for x
    x = 18,423,428,826.81/156,777.48
  6. Step 6: Final answer
    x = 117,513.23

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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.