Home / 210,430.20-315,437.52-83,994.28

Finding the Fourth Proportional to 210,430.20, 315,437.52 and 83,994.28

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Solution

The fourth proportional to 210,430.20, 315,437.52 and 83,994.28 is: 125,908.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,430.20 : 315,437.52 = 83,994.28 : x
  2. Step 2: Convert to fraction form
    210,430.20/315,437.52 = 83,994.28/x
  3. Step 3: Cross multiply
    210,430.20x = 315,437.52 × 83,994.28
  4. Step 4: Simplify right side
    210,430.20x = 26,494,947,377.39
  5. Step 5: Solve for x
    x = 26,494,947,377.39/210,430.20
  6. Step 6: Final answer
    x = 125,908.48

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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.