Home / 145,038.17-200,150.38-80,507.36

Finding the Fourth Proportional to 145,038.17, 200,150.38 and 80,507.36

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Solution

The fourth proportional to 145,038.17, 200,150.38 and 80,507.36 is: 111,098.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,038.17 : 200,150.38 = 80,507.36 : x
  2. Step 2: Convert to fraction form
    145,038.17/200,150.38 = 80,507.36/x
  3. Step 3: Cross multiply
    145,038.17x = 200,150.38 × 80,507.36
  4. Step 4: Simplify right side
    145,038.17x = 16,113,578,696.80
  5. Step 5: Solve for x
    x = 16,113,578,696.80/145,038.17
  6. Step 6: Final answer
    x = 111,098.88

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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.