Home / 142,108.74-213,118.68-47,316.78

Finding the Fourth Proportional to 142,108.74, 213,118.68 and 47,316.78

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Solution

The fourth proportional to 142,108.74, 213,118.68 and 47,316.78 is: 70,960.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,108.74 : 213,118.68 = 47,316.78 : x
  2. Step 2: Convert to fraction form
    142,108.74/213,118.68 = 47,316.78/x
  3. Step 3: Cross multiply
    142,108.74x = 213,118.68 × 47,316.78
  4. Step 4: Simplify right side
    142,108.74x = 10,084,089,695.45
  5. Step 5: Solve for x
    x = 10,084,089,695.45/142,108.74
  6. Step 6: Final answer
    x = 70,960.38

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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.