Home / 105,700.42-145,875.78-57,963.07

Finding the Fourth Proportional to 105,700.42, 145,875.78 and 57,963.07

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Solution

The fourth proportional to 105,700.42, 145,875.78 and 57,963.07 is: 79,994.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,700.42 : 145,875.78 = 57,963.07 : x
  2. Step 2: Convert to fraction form
    105,700.42/145,875.78 = 57,963.07/x
  3. Step 3: Cross multiply
    105,700.42x = 145,875.78 × 57,963.07
  4. Step 4: Simplify right side
    105,700.42x = 8,455,408,047.44
  5. Step 5: Solve for x
    x = 8,455,408,047.44/105,700.42
  6. Step 6: Final answer
    x = 79,994.08

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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.