Home / 153,570.14-211,854.36-89,868.50

Finding the Fourth Proportional to 153,570.14, 211,854.36 and 89,868.50

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Solution

The fourth proportional to 153,570.14, 211,854.36 and 89,868.50 is: 123,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,570.14 : 211,854.36 = 89,868.50 : x
  2. Step 2: Convert to fraction form
    153,570.14/211,854.36 = 89,868.50/x
  3. Step 3: Cross multiply
    153,570.14x = 211,854.36 × 89,868.50
  4. Step 4: Simplify right side
    153,570.14x = 19,039,033,551.66
  5. Step 5: Solve for x
    x = 19,039,033,551.66/153,570.14
  6. Step 6: Final answer
    x = 123,976.14

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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.