Home / 208,526.81-288,006.15-137,225.14

Finding the Fourth Proportional to 208,526.81, 288,006.15 and 137,225.14

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Solution

The fourth proportional to 208,526.81, 288,006.15 and 137,225.14 is: 189,528.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,526.81 : 288,006.15 = 137,225.14 : x
  2. Step 2: Convert to fraction form
    208,526.81/288,006.15 = 137,225.14/x
  3. Step 3: Cross multiply
    208,526.81x = 288,006.15 × 137,225.14
  4. Step 4: Simplify right side
    208,526.81x = 39,521,684,254.61
  5. Step 5: Solve for x
    x = 39,521,684,254.61/208,526.81
  6. Step 6: Final answer
    x = 189,528.07

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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.