Home / 145,003.18-200,124.36-81,345.04

Finding the Fourth Proportional to 145,003.18, 200,124.36 and 81,345.04

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Solution

The fourth proportional to 145,003.18, 200,124.36 and 81,345.04 is: 112,267.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,003.18 : 200,124.36 = 81,345.04 : x
  2. Step 2: Convert to fraction form
    145,003.18/200,124.36 = 81,345.04/x
  3. Step 3: Cross multiply
    145,003.18x = 200,124.36 × 81,345.04
  4. Step 4: Simplify right side
    145,003.18x = 16,279,124,069.17
  5. Step 5: Solve for x
    x = 16,279,124,069.17/145,003.18
  6. Step 6: Final answer
    x = 112,267.36

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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.