Home / 105,012.30-157,518.12-26,126.52

Finding the Fourth Proportional to 105,012.30, 157,518.12 and 26,126.52

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Solution

The fourth proportional to 105,012.30, 157,518.12 and 26,126.52 is: 39,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,012.30 : 157,518.12 = 26,126.52 : x
  2. Step 2: Convert to fraction form
    105,012.30/157,518.12 = 26,126.52/x
  3. Step 3: Cross multiply
    105,012.30x = 157,518.12 × 26,126.52
  4. Step 4: Simplify right side
    105,012.30x = 4,115,400,312.54
  5. Step 5: Solve for x
    x = 4,115,400,312.54/105,012.30
  6. Step 6: Final answer
    x = 39,189.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.