Home / 157,085.80-235,283.10-139,575.40

Finding the Fourth Proportional to 157,085.80, 235,283.10 and 139,575.40

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Solution

The fourth proportional to 157,085.80, 235,283.10 and 139,575.40 is: 209,056.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,085.80 : 235,283.10 = 139,575.40 : x
  2. Step 2: Convert to fraction form
    157,085.80/235,283.10 = 139,575.40/x
  3. Step 3: Cross multiply
    157,085.80x = 235,283.10 × 139,575.40
  4. Step 4: Simplify right side
    157,085.80x = 32,839,732,795.74
  5. Step 5: Solve for x
    x = 32,839,732,795.74/157,085.80
  6. Step 6: Final answer
    x = 209,056.02

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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.