Home / 147,867.55-221,642.95-105,619.51

Finding the Fourth Proportional to 147,867.55, 221,642.95 and 105,619.51

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Solution

The fourth proportional to 147,867.55, 221,642.95 and 105,619.51 is: 158,316.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,867.55 : 221,642.95 = 105,619.51 : x
  2. Step 2: Convert to fraction form
    147,867.55/221,642.95 = 105,619.51/x
  3. Step 3: Cross multiply
    147,867.55x = 221,642.95 × 105,619.51
  4. Step 4: Simplify right side
    147,867.55x = 23,409,819,773.95
  5. Step 5: Solve for x
    x = 23,409,819,773.95/147,867.55
  6. Step 6: Final answer
    x = 158,316.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.