Home / 130,968.76-180,758.63-77,266.97

Finding the Fourth Proportional to 130,968.76, 180,758.63 and 77,266.97

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Solution

The fourth proportional to 130,968.76, 180,758.63 and 77,266.97 is: 106,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,968.76 : 180,758.63 = 77,266.97 : x
  2. Step 2: Convert to fraction form
    130,968.76/180,758.63 = 77,266.97/x
  3. Step 3: Cross multiply
    130,968.76x = 180,758.63 × 77,266.97
  4. Step 4: Simplify right side
    130,968.76x = 13,966,671,255.12
  5. Step 5: Solve for x
    x = 13,966,671,255.12/130,968.76
  6. Step 6: Final answer
    x = 106,641.25

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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.