Home / 130,830.80-196,476.60-101,320.40

Finding the Fourth Proportional to 130,830.80, 196,476.60 and 101,320.40

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Solution

The fourth proportional to 130,830.80, 196,476.60 and 101,320.40 is: 152,159.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,830.80 : 196,476.60 = 101,320.40 : x
  2. Step 2: Convert to fraction form
    130,830.80/196,476.60 = 101,320.40/x
  3. Step 3: Cross multiply
    130,830.80x = 196,476.60 × 101,320.40
  4. Step 4: Simplify right side
    130,830.80x = 19,907,087,702.64
  5. Step 5: Solve for x
    x = 19,907,087,702.64/130,830.80
  6. Step 6: Final answer
    x = 152,159.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.