Home / 144,258.95-199,074.44-87,688.55

Finding the Fourth Proportional to 144,258.95, 199,074.44 and 87,688.55

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Solution

The fourth proportional to 144,258.95, 199,074.44 and 87,688.55 is: 121,008.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,258.95 : 199,074.44 = 87,688.55 : x
  2. Step 2: Convert to fraction form
    144,258.95/199,074.44 = 87,688.55/x
  3. Step 3: Cross multiply
    144,258.95x = 199,074.44 × 87,688.55
  4. Step 4: Simplify right side
    144,258.95x = 17,456,548,547.22
  5. Step 5: Solve for x
    x = 17,456,548,547.22/144,258.95
  6. Step 6: Final answer
    x = 121,008.43

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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.