Home / 105,397.32-145,407.45-67,150.02

Finding the Fourth Proportional to 105,397.32, 145,407.45 and 67,150.02

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Solution

The fourth proportional to 105,397.32, 145,407.45 and 67,150.02 is: 92,641.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,397.32 : 145,407.45 = 67,150.02 : x
  2. Step 2: Convert to fraction form
    105,397.32/145,407.45 = 67,150.02/x
  3. Step 3: Cross multiply
    105,397.32x = 145,407.45 × 67,150.02
  4. Step 4: Simplify right side
    105,397.32x = 9,764,113,175.65
  5. Step 5: Solve for x
    x = 9,764,113,175.65/105,397.32
  6. Step 6: Final answer
    x = 92,641.00

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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.