Home / 130,967.06-180,756.22-77,265.22

Finding the Fourth Proportional to 130,967.06, 180,756.22 and 77,265.22

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Solution

The fourth proportional to 130,967.06, 180,756.22 and 77,265.22 is: 106,638.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,967.06 : 180,756.22 = 77,265.22 : x
  2. Step 2: Convert to fraction form
    130,967.06/180,756.22 = 77,265.22/x
  3. Step 3: Cross multiply
    130,967.06x = 180,756.22 × 77,265.22
  4. Step 4: Simplify right side
    130,967.06x = 13,966,169,104.67
  5. Step 5: Solve for x
    x = 13,966,169,104.67/130,967.06
  6. Step 6: Final answer
    x = 106,638.79

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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.