Home / 156,677.90-216,216.54-85,058.30

Finding the Fourth Proportional to 156,677.90, 216,216.54 and 85,058.30

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Solution

The fourth proportional to 156,677.90, 216,216.54 and 85,058.30 is: 117,381.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,677.90 : 216,216.54 = 85,058.30 : x
  2. Step 2: Convert to fraction form
    156,677.90/216,216.54 = 85,058.30/x
  3. Step 3: Cross multiply
    156,677.90x = 216,216.54 × 85,058.30
  4. Step 4: Simplify right side
    156,677.90x = 18,391,011,864.82
  5. Step 5: Solve for x
    x = 18,391,011,864.82/156,677.90
  6. Step 6: Final answer
    x = 117,381.02

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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.