Home / 108,521.45-163,031.67-76,574.06

Finding the Fourth Proportional to 108,521.45, 163,031.67 and 76,574.06

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Solution

The fourth proportional to 108,521.45, 163,031.67 and 76,574.06 is: 115,037.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,521.45 : 163,031.67 = 76,574.06 : x
  2. Step 2: Convert to fraction form
    108,521.45/163,031.67 = 76,574.06/x
  3. Step 3: Cross multiply
    108,521.45x = 163,031.67 × 76,574.06
  4. Step 4: Simplify right side
    108,521.45x = 12,483,996,065.32
  5. Step 5: Solve for x
    x = 12,483,996,065.32/108,521.45
  6. Step 6: Final answer
    x = 115,037.13

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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.