Home / 156,937.36-216,577.80-85,322.29

Finding the Fourth Proportional to 156,937.36, 216,577.80 and 85,322.29

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Solution

The fourth proportional to 156,937.36, 216,577.80 and 85,322.29 is: 117,747.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,937.36 : 216,577.80 = 85,322.29 : x
  2. Step 2: Convert to fraction form
    156,937.36/216,577.80 = 85,322.29/x
  3. Step 3: Cross multiply
    156,937.36x = 216,577.80 × 85,322.29
  4. Step 4: Simplify right side
    156,937.36x = 18,478,913,859.16
  5. Step 5: Solve for x
    x = 18,478,913,859.16/156,937.36
  6. Step 6: Final answer
    x = 117,747.07

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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.