Home / 152,140.40-209,937.60-84,146.57

Finding the Fourth Proportional to 152,140.40, 209,937.60 and 84,146.57

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Solution

The fourth proportional to 152,140.40, 209,937.60 and 84,146.57 is: 116,113.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,140.40 : 209,937.60 = 84,146.57 : x
  2. Step 2: Convert to fraction form
    152,140.40/209,937.60 = 84,146.57/x
  3. Step 3: Cross multiply
    152,140.40x = 209,937.60 × 84,146.57
  4. Step 4: Simplify right side
    152,140.40x = 17,665,528,954.03
  5. Step 5: Solve for x
    x = 17,665,528,954.03/152,140.40
  6. Step 6: Final answer
    x = 116,113.33

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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.