Home / 93,010.08-128,136.93-64,666.56

Finding the Fourth Proportional to 93,010.08, 128,136.93 and 64,666.56

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Solution

The fourth proportional to 93,010.08, 128,136.93 and 64,666.56 is: 89,088.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,010.08 : 128,136.93 = 64,666.56 : x
  2. Step 2: Convert to fraction form
    93,010.08/128,136.93 = 64,666.56/x
  3. Step 3: Cross multiply
    93,010.08x = 128,136.93 × 64,666.56
  4. Step 4: Simplify right side
    93,010.08x = 8,286,174,472.06
  5. Step 5: Solve for x
    x = 8,286,174,472.06/93,010.08
  6. Step 6: Final answer
    x = 89,088.99

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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.