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Finding the Fourth Proportional to 188,570.40, 260,220.48 and 103,686.72

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Solution

The fourth proportional to 188,570.40, 260,220.48 and 103,686.72 is: 143,084.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,570.40 : 260,220.48 = 103,686.72 : x
  2. Step 2: Convert to fraction form
    188,570.40/260,220.48 = 103,686.72/x
  3. Step 3: Cross multiply
    188,570.40x = 260,220.48 × 103,686.72
  4. Step 4: Simplify right side
    188,570.40x = 26,981,408,048.03
  5. Step 5: Solve for x
    x = 26,981,408,048.03/188,570.40
  6. Step 6: Final answer
    x = 143,084.00

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1.5x scale

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.