Home / 143,386.84-215,124.02-73,315.36

Finding the Fourth Proportional to 143,386.84, 215,124.02 and 73,315.36

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Solution

The fourth proportional to 143,386.84, 215,124.02 and 73,315.36 is: 109,995.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,386.84 : 215,124.02 = 73,315.36 : x
  2. Step 2: Convert to fraction form
    143,386.84/215,124.02 = 73,315.36/x
  3. Step 3: Cross multiply
    143,386.84x = 215,124.02 × 73,315.36
  4. Step 4: Simplify right side
    143,386.84x = 15,771,894,970.95
  5. Step 5: Solve for x
    x = 15,771,894,970.95/143,386.84
  6. Step 6: Final answer
    x = 109,995.41

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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.