Home / 105,263.14-145,360.12-67,603

Finding the Fourth Proportional to 105,263.14, 145,360.12 and 67,603

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Solution

The fourth proportional to 105,263.14, 145,360.12 and 67,603 is: 93,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,263.14 : 145,360.12 = 67,603 : x
  2. Step 2: Convert to fraction form
    105,263.14/145,360.12 = 67,603/x
  3. Step 3: Cross multiply
    105,263.14x = 145,360.12 × 67,603
  4. Step 4: Simplify right side
    105,263.14x = 9,826,780,192.36
  5. Step 5: Solve for x
    x = 9,826,780,192.36/105,263.14
  6. Step 6: Final answer
    x = 93,354.43

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1.5x scale

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.