Home / 112,031.80-168,047.70-72,633.40

Finding the Fourth Proportional to 112,031.80, 168,047.70 and 72,633.40

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Solution

The fourth proportional to 112,031.80, 168,047.70 and 72,633.40 is: 108,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,031.80 : 168,047.70 = 72,633.40 : x
  2. Step 2: Convert to fraction form
    112,031.80/168,047.70 = 72,633.40/x
  3. Step 3: Cross multiply
    112,031.80x = 168,047.70 × 72,633.40
  4. Step 4: Simplify right side
    112,031.80x = 12,205,875,813.18
  5. Step 5: Solve for x
    x = 12,205,875,813.18/112,031.80
  6. Step 6: Final answer
    x = 108,950.10

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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.