Home / 268,045.02-402,023.76-90,548.10

Finding the Fourth Proportional to 268,045.02, 402,023.76 and 90,548.10

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Solution

The fourth proportional to 268,045.02, 402,023.76 and 90,548.10 is: 135,807.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,045.02 : 402,023.76 = 90,548.10 : x
  2. Step 2: Convert to fraction form
    268,045.02/402,023.76 = 90,548.10/x
  3. Step 3: Cross multiply
    268,045.02x = 402,023.76 × 90,548.10
  4. Step 4: Simplify right side
    268,045.02x = 36,402,487,622.86
  5. Step 5: Solve for x
    x = 36,402,487,622.86/268,045.02
  6. Step 6: Final answer
    x = 135,807.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.