Home / 105,044.32-157,566.40-31,172.32

Finding the Fourth Proportional to 105,044.32, 157,566.40 and 31,172.32

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Solution

The fourth proportional to 105,044.32, 157,566.40 and 31,172.32 is: 46,758.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,044.32 : 157,566.40 = 31,172.32 : x
  2. Step 2: Convert to fraction form
    105,044.32/157,566.40 = 31,172.32/x
  3. Step 3: Cross multiply
    105,044.32x = 157,566.40 × 31,172.32
  4. Step 4: Simplify right side
    105,044.32x = 4,911,710,242.05
  5. Step 5: Solve for x
    x = 4,911,710,242.05/105,044.32
  6. Step 6: Final answer
    x = 46,758.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.