Home / 137,894.48-190,284.12-77,475.18

Finding the Fourth Proportional to 137,894.48, 190,284.12 and 77,475.18

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Solution

The fourth proportional to 137,894.48, 190,284.12 and 77,475.18 is: 106,909.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,894.48 : 190,284.12 = 77,475.18 : x
  2. Step 2: Convert to fraction form
    137,894.48/190,284.12 = 77,475.18/x
  3. Step 3: Cross multiply
    137,894.48x = 190,284.12 × 77,475.18
  4. Step 4: Simplify right side
    137,894.48x = 14,742,296,448.14
  5. Step 5: Solve for x
    x = 14,742,296,448.14/137,894.48
  6. Step 6: Final answer
    x = 106,909.98

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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.