Home / 105,006.13-157,509.20-31,134.13

Finding the Fourth Proportional to 105,006.13, 157,509.20 and 31,134.13

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Solution

The fourth proportional to 105,006.13, 157,509.20 and 31,134.13 is: 46,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,006.13 : 157,509.20 = 31,134.13 : x
  2. Step 2: Convert to fraction form
    105,006.13/157,509.20 = 31,134.13/x
  3. Step 3: Cross multiply
    105,006.13x = 157,509.20 × 31,134.13
  4. Step 4: Simplify right side
    105,006.13x = 4,903,911,909.00
  5. Step 5: Solve for x
    x = 4,903,911,909.00/105,006.13
  6. Step 6: Final answer
    x = 46,701.20

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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.