Home / 105,005.13-157,507.70-31,133.13

Finding the Fourth Proportional to 105,005.13, 157,507.70 and 31,133.13

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Solution

The fourth proportional to 105,005.13, 157,507.70 and 31,133.13 is: 46,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,005.13 : 157,507.70 = 31,133.13 : x
  2. Step 2: Convert to fraction form
    105,005.13/157,507.70 = 31,133.13/x
  3. Step 3: Cross multiply
    105,005.13x = 157,507.70 × 31,133.13
  4. Step 4: Simplify right side
    105,005.13x = 4,903,707,700.10
  5. Step 5: Solve for x
    x = 4,903,707,700.10/105,005.13
  6. Step 6: Final answer
    x = 46,699.70

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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.