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Finding the Fourth Proportional to 101,275.79, 151,946.14 and 70,912.55

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Solution

The fourth proportional to 101,275.79, 151,946.14 and 70,912.55 is: 106,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,275.79 : 151,946.14 = 70,912.55 : x
  2. Step 2: Convert to fraction form
    101,275.79/151,946.14 = 70,912.55/x
  3. Step 3: Cross multiply
    101,275.79x = 151,946.14 × 70,912.55
  4. Step 4: Simplify right side
    101,275.79x = 10,774,888,250.06
  5. Step 5: Solve for x
    x = 10,774,888,250.06/101,275.79
  6. Step 6: Final answer
    x = 106,391.55

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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.