Home / 105,135.07-157,647.19-45,901.55

Finding the Fourth Proportional to 105,135.07, 157,647.19 and 45,901.55

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Solution

The fourth proportional to 105,135.07, 157,647.19 and 45,901.55 is: 68,828.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,135.07 : 157,647.19 = 45,901.55 : x
  2. Step 2: Convert to fraction form
    105,135.07/157,647.19 = 45,901.55/x
  3. Step 3: Cross multiply
    105,135.07x = 157,647.19 × 45,901.55
  4. Step 4: Simplify right side
    105,135.07x = 7,236,249,585.91
  5. Step 5: Solve for x
    x = 7,236,249,585.91/105,135.07
  6. Step 6: Final answer
    x = 68,828.12

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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.