Home / 130,946.16-180,705.72-71,330.16

Finding the Fourth Proportional to 130,946.16, 180,705.72 and 71,330.16

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Solution

The fourth proportional to 130,946.16, 180,705.72 and 71,330.16 is: 98,435.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,946.16 : 180,705.72 = 71,330.16 : x
  2. Step 2: Convert to fraction form
    130,946.16/180,705.72 = 71,330.16/x
  3. Step 3: Cross multiply
    130,946.16x = 180,705.72 × 71,330.16
  4. Step 4: Simplify right side
    130,946.16x = 12,889,767,920.52
  5. Step 5: Solve for x
    x = 12,889,767,920.52/130,946.16
  6. Step 6: Final answer
    x = 98,435.63

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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.