Home / 147,117.47-203,103.65-101,243.93

Finding the Fourth Proportional to 147,117.47, 203,103.65 and 101,243.93

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Solution

The fourth proportional to 147,117.47, 203,103.65 and 101,243.93 is: 139,772.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,117.47 : 203,103.65 = 101,243.93 : x
  2. Step 2: Convert to fraction form
    147,117.47/203,103.65 = 101,243.93/x
  3. Step 3: Cross multiply
    147,117.47x = 203,103.65 × 101,243.93
  4. Step 4: Simplify right side
    147,117.47x = 20,563,010,960.94
  5. Step 5: Solve for x
    x = 20,563,010,960.94/147,117.47
  6. Step 6: Final answer
    x = 139,772.74

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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.