Home / 134,829.72-186,063.75-74,400.89

Finding the Fourth Proportional to 134,829.72, 186,063.75 and 74,400.89

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Solution

The fourth proportional to 134,829.72, 186,063.75 and 74,400.89 is: 102,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,829.72 : 186,063.75 = 74,400.89 : x
  2. Step 2: Convert to fraction form
    134,829.72/186,063.75 = 74,400.89/x
  3. Step 3: Cross multiply
    134,829.72x = 186,063.75 × 74,400.89
  4. Step 4: Simplify right side
    134,829.72x = 13,843,307,666.42
  5. Step 5: Solve for x
    x = 13,843,307,666.42/134,829.72
  6. Step 6: Final answer
    x = 102,672.52

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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.