Home / 145,966.92-201,434.31-78,898.92

Finding the Fourth Proportional to 145,966.92, 201,434.31 and 78,898.92

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Solution

The fourth proportional to 145,966.92, 201,434.31 and 78,898.92 is: 108,880.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,966.92 : 201,434.31 = 78,898.92 : x
  2. Step 2: Convert to fraction form
    145,966.92/201,434.31 = 78,898.92/x
  3. Step 3: Cross multiply
    145,966.92x = 201,434.31 × 78,898.92
  4. Step 4: Simplify right side
    145,966.92x = 15,892,949,509.95
  5. Step 5: Solve for x
    x = 15,892,949,509.95/145,966.92
  6. Step 6: Final answer
    x = 108,880.49

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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.