Home / 90,608.16-135,302.06-74,001.15

Finding the Fourth Proportional to 90,608.16, 135,302.06 and 74,001.15

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Solution

The fourth proportional to 90,608.16, 135,302.06 and 74,001.15 is: 110,503.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,608.16 : 135,302.06 = 74,001.15 : x
  2. Step 2: Convert to fraction form
    90,608.16/135,302.06 = 74,001.15/x
  3. Step 3: Cross multiply
    90,608.16x = 135,302.06 × 74,001.15
  4. Step 4: Simplify right side
    90,608.16x = 10,012,508,037.37
  5. Step 5: Solve for x
    x = 10,012,508,037.37/90,608.16
  6. Step 6: Final answer
    x = 110,503.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.