Home / 93,217.58-139,122.14-86,897.16

Finding the Fourth Proportional to 93,217.58, 139,122.14 and 86,897.16

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Solution

The fourth proportional to 93,217.58, 139,122.14 and 86,897.16 is: 129,689.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,217.58 : 139,122.14 = 86,897.16 : x
  2. Step 2: Convert to fraction form
    93,217.58/139,122.14 = 86,897.16/x
  3. Step 3: Cross multiply
    93,217.58x = 139,122.14 × 86,897.16
  4. Step 4: Simplify right side
    93,217.58x = 12,089,318,859.12
  5. Step 5: Solve for x
    x = 12,089,318,859.12/93,217.58
  6. Step 6: Final answer
    x = 129,689.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.