Home / 160,981.71-222,154.80-89,368.40

Finding the Fourth Proportional to 160,981.71, 222,154.80 and 89,368.40

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Solution

The fourth proportional to 160,981.71, 222,154.80 and 89,368.40 is: 123,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,981.71 : 222,154.80 = 89,368.40 : x
  2. Step 2: Convert to fraction form
    160,981.71/222,154.80 = 89,368.40/x
  3. Step 3: Cross multiply
    160,981.71x = 222,154.80 × 89,368.40
  4. Step 4: Simplify right side
    160,981.71x = 19,853,619,028.32
  5. Step 5: Solve for x
    x = 19,853,619,028.32/160,981.71
  6. Step 6: Final answer
    x = 123,328.41

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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.