Home / 130,968.27-180,757.95-77,266.47

Finding the Fourth Proportional to 130,968.27, 180,757.95 and 77,266.47

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Solution

The fourth proportional to 130,968.27, 180,757.95 and 77,266.47 is: 106,640.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,968.27 : 180,757.95 = 77,266.47 : x
  2. Step 2: Convert to fraction form
    130,968.27/180,757.95 = 77,266.47/x
  3. Step 3: Cross multiply
    130,968.27x = 180,757.95 × 77,266.47
  4. Step 4: Simplify right side
    130,968.27x = 13,966,528,720.94
  5. Step 5: Solve for x
    x = 13,966,528,720.94/130,968.27
  6. Step 6: Final answer
    x = 106,640.55

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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.