Home / 130,834.49-180,575.16-77,116.37

Finding the Fourth Proportional to 130,834.49, 180,575.16 and 77,116.37

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Solution

The fourth proportional to 130,834.49, 180,575.16 and 77,116.37 is: 106,434.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,834.49 : 180,575.16 = 77,116.37 : x
  2. Step 2: Convert to fraction form
    130,834.49/180,575.16 = 77,116.37/x
  3. Step 3: Cross multiply
    130,834.49x = 180,575.16 × 77,116.37
  4. Step 4: Simplify right side
    130,834.49x = 13,925,300,851.37
  5. Step 5: Solve for x
    x = 13,925,300,851.37/130,834.49
  6. Step 6: Final answer
    x = 106,434.48

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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.