Home / 158,708.07-219,030.74-87,101.93

Finding the Fourth Proportional to 158,708.07, 219,030.74 and 87,101.93

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Solution

The fourth proportional to 158,708.07, 219,030.74 and 87,101.93 is: 120,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,708.07 : 219,030.74 = 87,101.93 : x
  2. Step 2: Convert to fraction form
    158,708.07/219,030.74 = 87,101.93/x
  3. Step 3: Cross multiply
    158,708.07x = 219,030.74 × 87,101.93
  4. Step 4: Simplify right side
    158,708.07x = 19,078,000,622.03
  5. Step 5: Solve for x
    x = 19,078,000,622.03/158,708.07
  6. Step 6: Final answer
    x = 120,208.13

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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.