Home / 105,158.08-145,118.48-67,432.48

Finding the Fourth Proportional to 105,158.08, 145,118.48 and 67,432.48

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Solution

The fourth proportional to 105,158.08, 145,118.48 and 67,432.48 is: 93,057.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,158.08 : 145,118.48 = 67,432.48 : x
  2. Step 2: Convert to fraction form
    105,158.08/145,118.48 = 67,432.48/x
  3. Step 3: Cross multiply
    105,158.08x = 145,118.48 × 67,432.48
  4. Step 4: Simplify right side
    105,158.08x = 9,785,699,000.23
  5. Step 5: Solve for x
    x = 9,785,699,000.23/105,158.08
  6. Step 6: Final answer
    x = 93,057.03

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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.