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Finding the Fourth Proportional to 146,030.19, 201,405 and 100,697.76

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Solution

The fourth proportional to 146,030.19, 201,405 and 100,697.76 is: 138,882.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,030.19 : 201,405 = 100,697.76 : x
  2. Step 2: Convert to fraction form
    146,030.19/201,405 = 100,697.76/x
  3. Step 3: Cross multiply
    146,030.19x = 201,405 × 100,697.76
  4. Step 4: Simplify right side
    146,030.19x = 20,281,032,352.80
  5. Step 5: Solve for x
    x = 20,281,032,352.80/146,030.19
  6. Step 6: Final answer
    x = 138,882.46

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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.