Home / 103,223.04-142,395.26-67,434

Finding the Fourth Proportional to 103,223.04, 142,395.26 and 67,434

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Solution

The fourth proportional to 103,223.04, 142,395.26 and 67,434 is: 93,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,223.04 : 142,395.26 = 67,434 : x
  2. Step 2: Convert to fraction form
    103,223.04/142,395.26 = 67,434/x
  3. Step 3: Cross multiply
    103,223.04x = 142,395.26 × 67,434
  4. Step 4: Simplify right side
    103,223.04x = 9,602,281,962.84
  5. Step 5: Solve for x
    x = 9,602,281,962.84/103,223.04
  6. Step 6: Final answer
    x = 93,024.60

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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.