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Finding the Fourth Proportional to 125,946, 173,790.28 and 72,228.24

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Solution

The fourth proportional to 125,946, 173,790.28 and 72,228.24 is: 99,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,946 : 173,790.28 = 72,228.24 : x
  2. Step 2: Convert to fraction form
    125,946/173,790.28 = 72,228.24/x
  3. Step 3: Cross multiply
    125,946x = 173,790.28 × 72,228.24
  4. Step 4: Simplify right side
    125,946x = 12,552,566,053.51
  5. Step 5: Solve for x
    x = 12,552,566,053.51/125,946
  6. Step 6: Final answer
    x = 99,666.25

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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.