Home / 153,867.02-212,335.70-85,880.07

Finding the Fourth Proportional to 153,867.02, 212,335.70 and 85,880.07

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Solution

The fourth proportional to 153,867.02, 212,335.70 and 85,880.07 is: 118,514.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,867.02 : 212,335.70 = 85,880.07 : x
  2. Step 2: Convert to fraction form
    153,867.02/212,335.70 = 85,880.07/x
  3. Step 3: Cross multiply
    153,867.02x = 212,335.70 × 85,880.07
  4. Step 4: Simplify right side
    153,867.02x = 18,235,404,350.10
  5. Step 5: Solve for x
    x = 18,235,404,350.10/153,867.02
  6. Step 6: Final answer
    x = 118,514.06

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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.