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Finding the Fourth Proportional to 147,503.40, 203,495.22 and 85,373.01

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Solution

The fourth proportional to 147,503.40, 203,495.22 and 85,373.01 is: 117,780.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,503.40 : 203,495.22 = 85,373.01 : x
  2. Step 2: Convert to fraction form
    147,503.40/203,495.22 = 85,373.01/x
  3. Step 3: Cross multiply
    147,503.40x = 203,495.22 × 85,373.01
  4. Step 4: Simplify right side
    147,503.40x = 17,372,999,452.01
  5. Step 5: Solve for x
    x = 17,372,999,452.01/147,503.40
  6. Step 6: Final answer
    x = 117,780.33

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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.