Home / 130,570.03-179,013.17-128,208.07

Finding the Fourth Proportional to 130,570.03, 179,013.17 and 128,208.07

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Solution

The fourth proportional to 130,570.03, 179,013.17 and 128,208.07 is: 175,774.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,570.03 : 179,013.17 = 128,208.07 : x
  2. Step 2: Convert to fraction form
    130,570.03/179,013.17 = 128,208.07/x
  3. Step 3: Cross multiply
    130,570.03x = 179,013.17 × 128,208.07
  4. Step 4: Simplify right side
    130,570.03x = 22,950,933,030.28
  5. Step 5: Solve for x
    x = 22,950,933,030.28/130,570.03
  6. Step 6: Final answer
    x = 175,774.89

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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.