Home / 128,050.84-176,703.01-71,465.86

Finding the Fourth Proportional to 128,050.84, 176,703.01 and 71,465.86

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Solution

The fourth proportional to 128,050.84, 176,703.01 and 71,465.86 is: 98,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,050.84 : 176,703.01 = 71,465.86 : x
  2. Step 2: Convert to fraction form
    128,050.84/176,703.01 = 71,465.86/x
  3. Step 3: Cross multiply
    128,050.84x = 176,703.01 × 71,465.86
  4. Step 4: Simplify right side
    128,050.84x = 12,628,232,574.24
  5. Step 5: Solve for x
    x = 12,628,232,574.24/128,050.84
  6. Step 6: Final answer
    x = 98,618.90

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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.