Home / 459,100.35-688,747.73-139,225.95

Finding the Fourth Proportional to 459,100.35, 688,747.73 and 139,225.95

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Solution

The fourth proportional to 459,100.35, 688,747.73 and 139,225.95 is: 208,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,100.35 : 688,747.73 = 139,225.95 : x
  2. Step 2: Convert to fraction form
    459,100.35/688,747.73 = 139,225.95/x
  3. Step 3: Cross multiply
    459,100.35x = 688,747.73 × 139,225.95
  4. Step 4: Simplify right side
    459,100.35x = 95,891,556,323.46
  5. Step 5: Solve for x
    x = 95,891,556,323.46/459,100.35
  6. Step 6: Final answer
    x = 208,868.40

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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.