Home / 243,349.02-365,042.70-85,612.86

Finding the Fourth Proportional to 243,349.02, 365,042.70 and 85,612.86

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Solution

The fourth proportional to 243,349.02, 365,042.70 and 85,612.86 is: 128,426.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,349.02 : 365,042.70 = 85,612.86 : x
  2. Step 2: Convert to fraction form
    243,349.02/365,042.70 = 85,612.86/x
  3. Step 3: Cross multiply
    243,349.02x = 365,042.70 × 85,612.86
  4. Step 4: Simplify right side
    243,349.02x = 31,252,349,569.12
  5. Step 5: Solve for x
    x = 31,252,349,569.12/243,349.02
  6. Step 6: Final answer
    x = 128,426.03

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1.5x scale

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.