Home / 187,982.79-259,417.53-103,100.46

Finding the Fourth Proportional to 187,982.79, 259,417.53 and 103,100.46

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Solution

The fourth proportional to 187,982.79, 259,417.53 and 103,100.46 is: 142,279.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,982.79 : 259,417.53 = 103,100.46 : x
  2. Step 2: Convert to fraction form
    187,982.79/259,417.53 = 103,100.46/x
  3. Step 3: Cross multiply
    187,982.79x = 259,417.53 × 103,100.46
  4. Step 4: Simplify right side
    187,982.79x = 26,746,066,675.06
  5. Step 5: Solve for x
    x = 26,746,066,675.06/187,982.79
  6. Step 6: Final answer
    x = 142,279.34

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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.