Home / 142,355.57-196,459.16-81,924.89

Finding the Fourth Proportional to 142,355.57, 196,459.16 and 81,924.89

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Solution

The fourth proportional to 142,355.57, 196,459.16 and 81,924.89 is: 113,061.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,355.57 : 196,459.16 = 81,924.89 : x
  2. Step 2: Convert to fraction form
    142,355.57/196,459.16 = 81,924.89/x
  3. Step 3: Cross multiply
    142,355.57x = 196,459.16 × 81,924.89
  4. Step 4: Simplify right side
    142,355.57x = 16,094,893,680.57
  5. Step 5: Solve for x
    x = 16,094,893,680.57/142,355.57
  6. Step 6: Final answer
    x = 113,061.22

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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.