Home / 105,004.75-157,507.13-31,132.75

Finding the Fourth Proportional to 105,004.75, 157,507.13 and 31,132.75

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Solution

The fourth proportional to 105,004.75, 157,507.13 and 31,132.75 is: 46,699.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,004.75 : 157,507.13 = 31,132.75 : x
  2. Step 2: Convert to fraction form
    105,004.75/157,507.13 = 31,132.75/x
  3. Step 3: Cross multiply
    105,004.75x = 157,507.13 × 31,132.75
  4. Step 4: Simplify right side
    105,004.75x = 4,903,630,101.51
  5. Step 5: Solve for x
    x = 4,903,630,101.51/105,004.75
  6. Step 6: Final answer
    x = 46,699.13

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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.