Home / 155,455.02-214,534.85-91,793.07

Finding the Fourth Proportional to 155,455.02, 214,534.85 and 91,793.07

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Solution

The fourth proportional to 155,455.02, 214,534.85 and 91,793.07 is: 126,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,455.02 : 214,534.85 = 91,793.07 : x
  2. Step 2: Convert to fraction form
    155,455.02/214,534.85 = 91,793.07/x
  3. Step 3: Cross multiply
    155,455.02x = 214,534.85 × 91,793.07
  4. Step 4: Simplify right side
    155,455.02x = 19,692,812,044.52
  5. Step 5: Solve for x
    x = 19,692,812,044.52/155,455.02
  6. Step 6: Final answer
    x = 126,678.52

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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.