Home / 112,365.40-154,851.07-80,478.94

Finding the Fourth Proportional to 112,365.40, 154,851.07 and 80,478.94

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Solution

The fourth proportional to 112,365.40, 154,851.07 and 80,478.94 is: 110,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,365.40 : 154,851.07 = 80,478.94 : x
  2. Step 2: Convert to fraction form
    112,365.40/154,851.07 = 80,478.94/x
  3. Step 3: Cross multiply
    112,365.40x = 154,851.07 × 80,478.94
  4. Step 4: Simplify right side
    112,365.40x = 12,462,249,971.47
  5. Step 5: Solve for x
    x = 12,462,249,971.47/112,365.40
  6. Step 6: Final answer
    x = 110,908.25

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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.