Home / 102,886.78-142,013.64-59,876.32

Finding the Fourth Proportional to 102,886.78, 142,013.64 and 59,876.32

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Solution

The fourth proportional to 102,886.78, 142,013.64 and 59,876.32 is: 82,646.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,886.78 : 142,013.64 = 59,876.32 : x
  2. Step 2: Convert to fraction form
    102,886.78/142,013.64 = 59,876.32/x
  3. Step 3: Cross multiply
    102,886.78x = 142,013.64 × 59,876.32
  4. Step 4: Simplify right side
    102,886.78x = 8,503,254,153.00
  5. Step 5: Solve for x
    x = 8,503,254,153.00/102,886.78
  6. Step 6: Final answer
    x = 82,646.71

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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.