Home / 209,424.30-289,012.02-118,783.95

Finding the Fourth Proportional to 209,424.30, 289,012.02 and 118,783.95

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Solution

The fourth proportional to 209,424.30, 289,012.02 and 118,783.95 is: 163,925.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,424.30 : 289,012.02 = 118,783.95 : x
  2. Step 2: Convert to fraction form
    209,424.30/289,012.02 = 118,783.95/x
  3. Step 3: Cross multiply
    209,424.30x = 289,012.02 × 118,783.95
  4. Step 4: Simplify right side
    209,424.30x = 34,329,989,333.08
  5. Step 5: Solve for x
    x = 34,329,989,333.08/209,424.30
  6. Step 6: Final answer
    x = 163,925.53

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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.