Home / 151,867.02-209,575.50-83,888.40

Finding the Fourth Proportional to 151,867.02, 209,575.50 and 83,888.40

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Solution

The fourth proportional to 151,867.02, 209,575.50 and 83,888.40 is: 115,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,867.02 : 209,575.50 = 83,888.40 : x
  2. Step 2: Convert to fraction form
    151,867.02/209,575.50 = 83,888.40/x
  3. Step 3: Cross multiply
    151,867.02x = 209,575.50 × 83,888.40
  4. Step 4: Simplify right side
    151,867.02x = 17,580,953,374.20
  5. Step 5: Solve for x
    x = 17,580,953,374.20/151,867.02
  6. Step 6: Final answer
    x = 115,765.45

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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.