Home / 105,283.40-145,301.09-57,543.92

Finding the Fourth Proportional to 105,283.40, 145,301.09 and 57,543.92

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Solution

The fourth proportional to 105,283.40, 145,301.09 and 57,543.92 is: 79,416.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,283.40 : 145,301.09 = 57,543.92 : x
  2. Step 2: Convert to fraction form
    105,283.40/145,301.09 = 57,543.92/x
  3. Step 3: Cross multiply
    105,283.40x = 145,301.09 × 57,543.92
  4. Step 4: Simplify right side
    105,283.40x = 8,361,194,153.21
  5. Step 5: Solve for x
    x = 8,361,194,153.21/105,283.40
  6. Step 6: Final answer
    x = 79,416.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.