Home / 108,988.20-163,586.70-56,435.40

Finding the Fourth Proportional to 108,988.20, 163,586.70 and 56,435.40

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Solution

The fourth proportional to 108,988.20, 163,586.70 and 56,435.40 is: 84,707.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,988.20 : 163,586.70 = 56,435.40 : x
  2. Step 2: Convert to fraction form
    108,988.20/163,586.70 = 56,435.40/x
  3. Step 3: Cross multiply
    108,988.20x = 163,586.70 × 56,435.40
  4. Step 4: Simplify right side
    108,988.20x = 9,232,080,849.18
  5. Step 5: Solve for x
    x = 9,232,080,849.18/108,988.20
  6. Step 6: Final answer
    x = 84,707.16

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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.