Home / 109,313.12-163,956.72-34,430.24

Finding the Fourth Proportional to 109,313.12, 163,956.72 and 34,430.24

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Solution

The fourth proportional to 109,313.12, 163,956.72 and 34,430.24 is: 51,641.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,313.12 : 163,956.72 = 34,430.24 : x
  2. Step 2: Convert to fraction form
    109,313.12/163,956.72 = 34,430.24/x
  3. Step 3: Cross multiply
    109,313.12x = 163,956.72 × 34,430.24
  4. Step 4: Simplify right side
    109,313.12x = 5,645,069,219.21
  5. Step 5: Solve for x
    x = 5,645,069,219.21/109,313.12
  6. Step 6: Final answer
    x = 51,641.28

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1.5x scale

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.