Home / 100,102.47-138,127.74-59,807.67

Finding the Fourth Proportional to 100,102.47, 138,127.74 and 59,807.67

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Solution

The fourth proportional to 100,102.47, 138,127.74 and 59,807.67 is: 82,526.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,102.47 : 138,127.74 = 59,807.67 : x
  2. Step 2: Convert to fraction form
    100,102.47/138,127.74 = 59,807.67/x
  3. Step 3: Cross multiply
    100,102.47x = 138,127.74 × 59,807.67
  4. Step 4: Simplify right side
    100,102.47x = 8,261,098,291.77
  5. Step 5: Solve for x
    x = 8,261,098,291.77/100,102.47
  6. Step 6: Final answer
    x = 82,526.42

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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.