Home / 134,570.78-185,706.79-74,140.04

Finding the Fourth Proportional to 134,570.78, 185,706.79 and 74,140.04

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Solution

The fourth proportional to 134,570.78, 185,706.79 and 74,140.04 is: 102,312.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,570.78 : 185,706.79 = 74,140.04 : x
  2. Step 2: Convert to fraction form
    134,570.78/185,706.79 = 74,140.04/x
  3. Step 3: Cross multiply
    134,570.78x = 185,706.79 × 74,140.04
  4. Step 4: Simplify right side
    134,570.78x = 13,768,308,838.87
  5. Step 5: Solve for x
    x = 13,768,308,838.87/134,570.78
  6. Step 6: Final answer
    x = 102,312.77

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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.