Home / 100,292.55-138,383.25-59,438.67

Finding the Fourth Proportional to 100,292.55, 138,383.25 and 59,438.67

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Solution

The fourth proportional to 100,292.55, 138,383.25 and 59,438.67 is: 82,013.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,292.55 : 138,383.25 = 59,438.67 : x
  2. Step 2: Convert to fraction form
    100,292.55/138,383.25 = 59,438.67/x
  3. Step 3: Cross multiply
    100,292.55x = 138,383.25 × 59,438.67
  4. Step 4: Simplify right side
    100,292.55x = 8,225,316,330.28
  5. Step 5: Solve for x
    x = 8,225,316,330.28/100,292.55
  6. Step 6: Final answer
    x = 82,013.23

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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.