Home / 151,461.50-209,008.35-83,478.26

Finding the Fourth Proportional to 151,461.50, 209,008.35 and 83,478.26

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Solution

The fourth proportional to 151,461.50, 209,008.35 and 83,478.26 is: 115,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,461.50 : 209,008.35 = 83,478.26 : x
  2. Step 2: Convert to fraction form
    151,461.50/209,008.35 = 83,478.26/x
  3. Step 3: Cross multiply
    151,461.50x = 209,008.35 × 83,478.26
  4. Step 4: Simplify right side
    151,461.50x = 17,447,652,338.43
  5. Step 5: Solve for x
    x = 17,447,652,338.43/151,461.50
  6. Step 6: Final answer
    x = 115,195.30

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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.