Home / 180,678.03-249,337.67-100,106.82

Finding the Fourth Proportional to 180,678.03, 249,337.67 and 100,106.82

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Solution

The fourth proportional to 180,678.03, 249,337.67 and 100,106.82 is: 138,148.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,678.03 : 249,337.67 = 100,106.82 : x
  2. Step 2: Convert to fraction form
    180,678.03/249,337.67 = 100,106.82/x
  3. Step 3: Cross multiply
    180,678.03x = 249,337.67 × 100,106.82
  4. Step 4: Simplify right side
    180,678.03x = 24,960,400,749.38
  5. Step 5: Solve for x
    x = 24,960,400,749.38/180,678.03
  6. Step 6: Final answer
    x = 138,148.51

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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.