Home / 131,652.16-181,679.68-72,036.16

Finding the Fourth Proportional to 131,652.16, 181,679.68 and 72,036.16

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Solution

The fourth proportional to 131,652.16, 181,679.68 and 72,036.16 is: 99,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,652.16 : 181,679.68 = 72,036.16 : x
  2. Step 2: Convert to fraction form
    131,652.16/181,679.68 = 72,036.16/x
  3. Step 3: Cross multiply
    131,652.16x = 181,679.68 × 72,036.16
  4. Step 4: Simplify right side
    131,652.16x = 13,087,506,497.23
  5. Step 5: Solve for x
    x = 13,087,506,497.23/131,652.16
  6. Step 6: Final answer
    x = 99,409.74

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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.