Home / 155,423.34-214,483.86-87,440.34

Finding the Fourth Proportional to 155,423.34, 214,483.86 and 87,440.34

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Solution

The fourth proportional to 155,423.34, 214,483.86 and 87,440.34 is: 120,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,423.34 : 214,483.86 = 87,440.34 : x
  2. Step 2: Convert to fraction form
    155,423.34/214,483.86 = 87,440.34/x
  3. Step 3: Cross multiply
    155,423.34x = 214,483.86 × 87,440.34
  4. Step 4: Simplify right side
    155,423.34x = 18,754,541,642.91
  5. Step 5: Solve for x
    x = 18,754,541,642.91/155,423.34
  6. Step 6: Final answer
    x = 120,667.47

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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.