Home / 107,084.65-147,538.92-70,721.52

Finding the Fourth Proportional to 107,084.65, 147,538.92 and 70,721.52

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Solution

The fourth proportional to 107,084.65, 147,538.92 and 70,721.52 is: 97,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,084.65 : 147,538.92 = 70,721.52 : x
  2. Step 2: Convert to fraction form
    107,084.65/147,538.92 = 70,721.52/x
  3. Step 3: Cross multiply
    107,084.65x = 147,538.92 × 70,721.52
  4. Step 4: Simplify right side
    107,084.65x = 10,434,176,681.56
  5. Step 5: Solve for x
    x = 10,434,176,681.56/107,084.65
  6. Step 6: Final answer
    x = 97,438.58

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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.