Home / 147,311.61-220,531.46-90,970.59

Finding the Fourth Proportional to 147,311.61, 220,531.46 and 90,970.59

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Solution

The fourth proportional to 147,311.61, 220,531.46 and 90,970.59 is: 136,186.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,311.61 : 220,531.46 = 90,970.59 : x
  2. Step 2: Convert to fraction form
    147,311.61/220,531.46 = 90,970.59/x
  3. Step 3: Cross multiply
    147,311.61x = 220,531.46 × 90,970.59
  4. Step 4: Simplify right side
    147,311.61x = 20,061,877,913.61
  5. Step 5: Solve for x
    x = 20,061,877,913.61/147,311.61
  6. Step 6: Final answer
    x = 136,186.67

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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.