Home / 155,036.95-213,948.26-87,054.46

Finding the Fourth Proportional to 155,036.95, 213,948.26 and 87,054.46

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Solution

The fourth proportional to 155,036.95, 213,948.26 and 87,054.46 is: 120,133.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,036.95 : 213,948.26 = 87,054.46 : x
  2. Step 2: Convert to fraction form
    155,036.95/213,948.26 = 87,054.46/x
  3. Step 3: Cross multiply
    155,036.95x = 213,948.26 × 87,054.46
  4. Step 4: Simplify right side
    155,036.95x = 18,625,150,242.24
  5. Step 5: Solve for x
    x = 18,625,150,242.24/155,036.95
  6. Step 6: Final answer
    x = 120,133.62

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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.