Home / 156,774.38-216,349.80-85,154.37

Finding the Fourth Proportional to 156,774.38, 216,349.80 and 85,154.37

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Solution

The fourth proportional to 156,774.38, 216,349.80 and 85,154.37 is: 117,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,774.38 : 216,349.80 = 85,154.37 : x
  2. Step 2: Convert to fraction form
    156,774.38/216,349.80 = 85,154.37/x
  3. Step 3: Cross multiply
    156,774.38x = 216,349.80 × 85,154.37
  4. Step 4: Simplify right side
    156,774.38x = 18,423,130,918.63
  5. Step 5: Solve for x
    x = 18,423,130,918.63/156,774.38
  6. Step 6: Final answer
    x = 117,513.66

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1.5x scale

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.