Home / 180,713.63-249,381.89-100,140.91

Finding the Fourth Proportional to 180,713.63, 249,381.89 and 100,140.91

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Solution

The fourth proportional to 180,713.63, 249,381.89 and 100,140.91 is: 138,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,713.63 : 249,381.89 = 100,140.91 : x
  2. Step 2: Convert to fraction form
    180,713.63/249,381.89 = 100,140.91/x
  3. Step 3: Cross multiply
    180,713.63x = 249,381.89 × 100,140.91
  4. Step 4: Simplify right side
    180,713.63x = 24,973,328,653.49
  5. Step 5: Solve for x
    x = 24,973,328,653.49/180,713.63
  6. Step 6: Final answer
    x = 138,192.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.