Home / 147,390.74-203,341.48-90,703.70

Finding the Fourth Proportional to 147,390.74, 203,341.48 and 90,703.70

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Solution

The fourth proportional to 147,390.74, 203,341.48 and 90,703.70 is: 125,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,390.74 : 203,341.48 = 90,703.70 : x
  2. Step 2: Convert to fraction form
    147,390.74/203,341.48 = 90,703.70/x
  3. Step 3: Cross multiply
    147,390.74x = 203,341.48 × 90,703.70
  4. Step 4: Simplify right side
    147,390.74x = 18,443,824,599.48
  5. Step 5: Solve for x
    x = 18,443,824,599.48/147,390.74
  6. Step 6: Final answer
    x = 125,135.57

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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.