Home / 185,320.36-255,741.06-100,437.40

Finding the Fourth Proportional to 185,320.36, 255,741.06 and 100,437.40

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Solution

The fourth proportional to 185,320.36, 255,741.06 and 100,437.40 is: 138,603.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,320.36 : 255,741.06 = 100,437.40 : x
  2. Step 2: Convert to fraction form
    185,320.36/255,741.06 = 100,437.40/x
  3. Step 3: Cross multiply
    185,320.36x = 255,741.06 × 100,437.40
  4. Step 4: Simplify right side
    185,320.36x = 25,685,967,139.64
  5. Step 5: Solve for x
    x = 25,685,967,139.64/185,320.36
  6. Step 6: Final answer
    x = 138,603.05

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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.