Home / 105,026.45-157,398.95-98,300.39

Finding the Fourth Proportional to 105,026.45, 157,398.95 and 98,300.39

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Solution

The fourth proportional to 105,026.45, 157,398.95 and 98,300.39 is: 147,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,026.45 : 157,398.95 = 98,300.39 : x
  2. Step 2: Convert to fraction form
    105,026.45/157,398.95 = 98,300.39/x
  3. Step 3: Cross multiply
    105,026.45x = 157,398.95 × 98,300.39
  4. Step 4: Simplify right side
    105,026.45x = 15,472,377,076.41
  5. Step 5: Solve for x
    x = 15,472,377,076.41/105,026.45
  6. Step 6: Final answer
    x = 147,318.86

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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.