Home / 105,403.68-157,354.20-101,712.24

Finding the Fourth Proportional to 105,403.68, 157,354.20 and 101,712.24

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Solution

The fourth proportional to 105,403.68, 157,354.20 and 101,712.24 is: 151,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,403.68 : 157,354.20 = 101,712.24 : x
  2. Step 2: Convert to fraction form
    105,403.68/157,354.20 = 101,712.24/x
  3. Step 3: Cross multiply
    105,403.68x = 157,354.20 × 101,712.24
  4. Step 4: Simplify right side
    105,403.68x = 16,004,848,155.41
  5. Step 5: Solve for x
    x = 16,004,848,155.41/105,403.68
  6. Step 6: Final answer
    x = 151,843.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.