Home / 153,727.02-212,124.42-85,728.06

Finding the Fourth Proportional to 153,727.02, 212,124.42 and 85,728.06

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Solution

The fourth proportional to 153,727.02, 212,124.42 and 85,728.06 is: 118,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,727.02 : 212,124.42 = 85,728.06 : x
  2. Step 2: Convert to fraction form
    153,727.02/212,124.42 = 85,728.06/x
  3. Step 3: Cross multiply
    153,727.02x = 212,124.42 × 85,728.06
  4. Step 4: Simplify right side
    153,727.02x = 18,185,015,005.23
  5. Step 5: Solve for x
    x = 18,185,015,005.23/153,727.02
  6. Step 6: Final answer
    x = 118,294.20

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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.