Home / 113,175.36-156,176.40-65,424.16

Finding the Fourth Proportional to 113,175.36, 156,176.40 and 65,424.16

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Solution

The fourth proportional to 113,175.36, 156,176.40 and 65,424.16 is: 90,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,175.36 : 156,176.40 = 65,424.16 : x
  2. Step 2: Convert to fraction form
    113,175.36/156,176.40 = 65,424.16/x
  3. Step 3: Cross multiply
    113,175.36x = 156,176.40 × 65,424.16
  4. Step 4: Simplify right side
    113,175.36x = 10,217,709,781.82
  5. Step 5: Solve for x
    x = 10,217,709,781.82/113,175.36
  6. Step 6: Final answer
    x = 90,282.11

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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.