Home / 157,136.58-216,697.73-105,570.19

Finding the Fourth Proportional to 157,136.58, 216,697.73 and 105,570.19

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Solution

The fourth proportional to 157,136.58, 216,697.73 and 105,570.19 is: 145,585.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,136.58 : 216,697.73 = 105,570.19 : x
  2. Step 2: Convert to fraction form
    157,136.58/216,697.73 = 105,570.19/x
  3. Step 3: Cross multiply
    157,136.58x = 216,697.73 × 105,570.19
  4. Step 4: Simplify right side
    157,136.58x = 22,876,819,646.60
  5. Step 5: Solve for x
    x = 22,876,819,646.60/157,136.58
  6. Step 6: Final answer
    x = 145,585.57

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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.