Home / 145,400.58-200,637.48-80,859.36

Finding the Fourth Proportional to 145,400.58, 200,637.48 and 80,859.36

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Solution

The fourth proportional to 145,400.58, 200,637.48 and 80,859.36 is: 111,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,400.58 : 200,637.48 = 80,859.36 : x
  2. Step 2: Convert to fraction form
    145,400.58/200,637.48 = 80,859.36/x
  3. Step 3: Cross multiply
    145,400.58x = 200,637.48 × 80,859.36
  4. Step 4: Simplify right side
    145,400.58x = 16,223,418,224.81
  5. Step 5: Solve for x
    x = 16,223,418,224.81/145,400.58
  6. Step 6: Final answer
    x = 111,577.40

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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.