Home / 130,724.48-180,435.13-77,026.34

Finding the Fourth Proportional to 130,724.48, 180,435.13 and 77,026.34

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Solution

The fourth proportional to 130,724.48, 180,435.13 and 77,026.34 is: 106,317.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,724.48 : 180,435.13 = 77,026.34 : x
  2. Step 2: Convert to fraction form
    130,724.48/180,435.13 = 77,026.34/x
  3. Step 3: Cross multiply
    130,724.48x = 180,435.13 × 77,026.34
  4. Step 4: Simplify right side
    130,724.48x = 13,898,257,929.85
  5. Step 5: Solve for x
    x = 13,898,257,929.85/130,724.48
  6. Step 6: Final answer
    x = 106,317.18

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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.