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Finding the Fourth Proportional to 134,069.40, 201,104.10 and 86,830.20

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Solution

The fourth proportional to 134,069.40, 201,104.10 and 86,830.20 is: 130,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,069.40 : 201,104.10 = 86,830.20 : x
  2. Step 2: Convert to fraction form
    134,069.40/201,104.10 = 86,830.20/x
  3. Step 3: Cross multiply
    134,069.40x = 201,104.10 × 86,830.20
  4. Step 4: Simplify right side
    134,069.40x = 17,461,909,223.82
  5. Step 5: Solve for x
    x = 17,461,909,223.82/134,069.40
  6. Step 6: Final answer
    x = 130,245.30

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1.5x scale

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.