Home / 156,762.48-216,332.05-85,142.56

Finding the Fourth Proportional to 156,762.48, 216,332.05 and 85,142.56

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Solution

The fourth proportional to 156,762.48, 216,332.05 and 85,142.56 is: 117,496.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,762.48 : 216,332.05 = 85,142.56 : x
  2. Step 2: Convert to fraction form
    156,762.48/216,332.05 = 85,142.56/x
  3. Step 3: Cross multiply
    156,762.48x = 216,332.05 × 85,142.56
  4. Step 4: Simplify right side
    156,762.48x = 18,419,064,547.05
  5. Step 5: Solve for x
    x = 18,419,064,547.05/156,762.48
  6. Step 6: Final answer
    x = 117,496.64

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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.