Home / 145,228.20-200,382.16-87,866.10

Finding the Fourth Proportional to 145,228.20, 200,382.16 and 87,866.10

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Solution

The fourth proportional to 145,228.20, 200,382.16 and 87,866.10 is: 121,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,228.20 : 200,382.16 = 87,866.10 : x
  2. Step 2: Convert to fraction form
    145,228.20/200,382.16 = 87,866.10/x
  3. Step 3: Cross multiply
    145,228.20x = 200,382.16 × 87,866.10
  4. Step 4: Simplify right side
    145,228.20x = 17,606,798,908.78
  5. Step 5: Solve for x
    x = 17,606,798,908.78/145,228.20
  6. Step 6: Final answer
    x = 121,235.40

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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.