Home / 117,062.12-161,502.24-76,798.28

Finding the Fourth Proportional to 117,062.12, 161,502.24 and 76,798.28

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Solution

The fourth proportional to 117,062.12, 161,502.24 and 76,798.28 is: 105,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,062.12 : 161,502.24 = 76,798.28 : x
  2. Step 2: Convert to fraction form
    117,062.12/161,502.24 = 76,798.28/x
  3. Step 3: Cross multiply
    117,062.12x = 161,502.24 × 76,798.28
  4. Step 4: Simplify right side
    117,062.12x = 12,403,094,248.15
  5. Step 5: Solve for x
    x = 12,403,094,248.15/117,062.12
  6. Step 6: Final answer
    x = 105,953.10

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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.