Home / 148,678.08-205,038.66-101,002.56

Finding the Fourth Proportional to 148,678.08, 205,038.66 and 101,002.56

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Solution

The fourth proportional to 148,678.08, 205,038.66 and 101,002.56 is: 139,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,678.08 : 205,038.66 = 101,002.56 : x
  2. Step 2: Convert to fraction form
    148,678.08/205,038.66 = 101,002.56/x
  3. Step 3: Cross multiply
    148,678.08x = 205,038.66 × 101,002.56
  4. Step 4: Simplify right side
    148,678.08x = 20,709,429,558.97
  5. Step 5: Solve for x
    x = 20,709,429,558.97/148,678.08
  6. Step 6: Final answer
    x = 139,290.40

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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.