Home / 107,013.50-147,586.47-66,685.22

Finding the Fourth Proportional to 107,013.50, 147,586.47 and 66,685.22

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Solution

The fourth proportional to 107,013.50, 147,586.47 and 66,685.22 is: 91,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,013.50 : 147,586.47 = 66,685.22 : x
  2. Step 2: Convert to fraction form
    107,013.50/147,586.47 = 66,685.22/x
  3. Step 3: Cross multiply
    107,013.50x = 147,586.47 × 66,685.22
  4. Step 4: Simplify right side
    107,013.50x = 9,841,835,483.04
  5. Step 5: Solve for x
    x = 9,841,835,483.04/107,013.50
  6. Step 6: Final answer
    x = 91,968.17

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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.