Home / 123,136.04-169,927.80-66,547.46

Finding the Fourth Proportional to 123,136.04, 169,927.80 and 66,547.46

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Solution

The fourth proportional to 123,136.04, 169,927.80 and 66,547.46 is: 91,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,136.04 : 169,927.80 = 66,547.46 : x
  2. Step 2: Convert to fraction form
    123,136.04/169,927.80 = 66,547.46/x
  3. Step 3: Cross multiply
    123,136.04x = 169,927.80 × 66,547.46
  4. Step 4: Simplify right side
    123,136.04x = 11,308,263,473.39
  5. Step 5: Solve for x
    x = 11,308,263,473.39/123,136.04
  6. Step 6: Final answer
    x = 91,835.53

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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.