Home / 130,569.03-179,011.80-128,207.07

Finding the Fourth Proportional to 130,569.03, 179,011.80 and 128,207.07

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Solution

The fourth proportional to 130,569.03, 179,011.80 and 128,207.07 is: 175,773.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,569.03 : 179,011.80 = 128,207.07 : x
  2. Step 2: Convert to fraction form
    130,569.03/179,011.80 = 128,207.07/x
  3. Step 3: Cross multiply
    130,569.03x = 179,011.80 × 128,207.07
  4. Step 4: Simplify right side
    130,569.03x = 22,950,578,373.43
  5. Step 5: Solve for x
    x = 22,950,578,373.43/130,569.03
  6. Step 6: Final answer
    x = 175,773.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.