Home / 142,037.71-212,906.78-47,242.58

Finding the Fourth Proportional to 142,037.71, 212,906.78 and 47,242.58

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Solution

The fourth proportional to 142,037.71, 212,906.78 and 47,242.58 is: 70,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,037.71 : 212,906.78 = 47,242.58 : x
  2. Step 2: Convert to fraction form
    142,037.71/212,906.78 = 47,242.58/x
  3. Step 3: Cross multiply
    142,037.71x = 212,906.78 × 47,242.58
  4. Step 4: Simplify right side
    142,037.71x = 10,058,264,950.89
  5. Step 5: Solve for x
    x = 10,058,264,950.89/142,037.71
  6. Step 6: Final answer
    x = 70,814.04

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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.