Home / 137,791.04-190,136.91-77,368.32

Finding the Fourth Proportional to 137,791.04, 190,136.91 and 77,368.32

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Solution

The fourth proportional to 137,791.04, 190,136.91 and 77,368.32 is: 106,760.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,791.04 : 190,136.91 = 77,368.32 : x
  2. Step 2: Convert to fraction form
    137,791.04/190,136.91 = 77,368.32/x
  3. Step 3: Cross multiply
    137,791.04x = 190,136.91 × 77,368.32
  4. Step 4: Simplify right side
    137,791.04x = 14,710,573,296.69
  5. Step 5: Solve for x
    x = 14,710,573,296.69/137,791.04
  6. Step 6: Final answer
    x = 106,760.02

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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.