Home / 209,090.81-288,559.59-118,447.52

Finding the Fourth Proportional to 209,090.81, 288,559.59 and 118,447.52

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Solution

The fourth proportional to 209,090.81, 288,559.59 and 118,447.52 is: 163,465.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,090.81 : 288,559.59 = 118,447.52 : x
  2. Step 2: Convert to fraction form
    209,090.81/288,559.59 = 118,447.52/x
  3. Step 3: Cross multiply
    209,090.81x = 288,559.59 × 118,447.52
  4. Step 4: Simplify right side
    209,090.81x = 34,179,166,253.87
  5. Step 5: Solve for x
    x = 34,179,166,253.87/209,090.81
  6. Step 6: Final answer
    x = 163,465.66

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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.