Home / 90,313.28-135,602.56-88,718.66

Finding the Fourth Proportional to 90,313.28, 135,602.56 and 88,718.66

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Solution

The fourth proportional to 90,313.28, 135,602.56 and 88,718.66 is: 133,208.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,313.28 : 135,602.56 = 88,718.66 : x
  2. Step 2: Convert to fraction form
    90,313.28/135,602.56 = 88,718.66/x
  3. Step 3: Cross multiply
    90,313.28x = 135,602.56 × 88,718.66
  4. Step 4: Simplify right side
    90,313.28x = 12,030,477,415.77
  5. Step 5: Solve for x
    x = 12,030,477,415.77/90,313.28
  6. Step 6: Final answer
    x = 133,208.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.