Home / 160,851.60-221,971.16-89,233.20

Finding the Fourth Proportional to 160,851.60, 221,971.16 and 89,233.20

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Solution

The fourth proportional to 160,851.60, 221,971.16 and 89,233.20 is: 123,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,851.60 : 221,971.16 = 89,233.20 : x
  2. Step 2: Convert to fraction form
    160,851.60/221,971.16 = 89,233.20/x
  3. Step 3: Cross multiply
    160,851.60x = 221,971.16 × 89,233.20
  4. Step 4: Simplify right side
    160,851.60x = 19,807,196,914.51
  5. Step 5: Solve for x
    x = 19,807,196,914.51/160,851.60
  6. Step 6: Final answer
    x = 123,139.57

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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.