Home / 199,135.81-274,681.89-118,503.16

Finding the Fourth Proportional to 199,135.81, 274,681.89 and 118,503.16

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Solution

The fourth proportional to 199,135.81, 274,681.89 and 118,503.16 is: 163,459.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,135.81 : 274,681.89 = 118,503.16 : x
  2. Step 2: Convert to fraction form
    199,135.81/274,681.89 = 118,503.16/x
  3. Step 3: Cross multiply
    199,135.81x = 274,681.89 × 118,503.16
  4. Step 4: Simplify right side
    199,135.81x = 32,550,671,959.77
  5. Step 5: Solve for x
    x = 32,550,671,959.77/199,135.81
  6. Step 6: Final answer
    x = 163,459.66

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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.