Home / 209,510.27-289,130.73-118,870.05

Finding the Fourth Proportional to 209,510.27, 289,130.73 and 118,870.05

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Solution

The fourth proportional to 209,510.27, 289,130.73 and 118,870.05 is: 164,044.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,510.27 : 289,130.73 = 118,870.05 : x
  2. Step 2: Convert to fraction form
    209,510.27/289,130.73 = 118,870.05/x
  3. Step 3: Cross multiply
    209,510.27x = 289,130.73 × 118,870.05
  4. Step 4: Simplify right side
    209,510.27x = 34,368,984,331.64
  5. Step 5: Solve for x
    x = 34,368,984,331.64/209,510.27
  6. Step 6: Final answer
    x = 164,044.39

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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.