Home / 103,219.40-142,444.32-57,907.40

Finding the Fourth Proportional to 103,219.40, 142,444.32 and 57,907.40

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Solution

The fourth proportional to 103,219.40, 142,444.32 and 57,907.40 is: 79,913.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,219.40 : 142,444.32 = 57,907.40 : x
  2. Step 2: Convert to fraction form
    103,219.40/142,444.32 = 57,907.40/x
  3. Step 3: Cross multiply
    103,219.40x = 142,444.32 × 57,907.40
  4. Step 4: Simplify right side
    103,219.40x = 8,248,580,215.97
  5. Step 5: Solve for x
    x = 8,248,580,215.97/103,219.40
  6. Step 6: Final answer
    x = 79,913.08

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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.