Home / 153,945.02-212,447.73-85,959.70

Finding the Fourth Proportional to 153,945.02, 212,447.73 and 85,959.70

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Solution

The fourth proportional to 153,945.02, 212,447.73 and 85,959.70 is: 118,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,945.02 : 212,447.73 = 85,959.70 : x
  2. Step 2: Convert to fraction form
    153,945.02/212,447.73 = 85,959.70/x
  3. Step 3: Cross multiply
    153,945.02x = 212,447.73 × 85,959.70
  4. Step 4: Simplify right side
    153,945.02x = 18,261,943,136.48
  5. Step 5: Solve for x
    x = 18,261,943,136.48/153,945.02
  6. Step 6: Final answer
    x = 118,626.40

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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.