Home / 145,438.51-218,007.27-55,457.00

Finding the Fourth Proportional to 145,438.51, 218,007.27 and 55,457.00

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Solution

The fourth proportional to 145,438.51, 218,007.27 and 55,457.00 is: 83,128.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,438.51 : 218,007.27 = 55,457.00 : x
  2. Step 2: Convert to fraction form
    145,438.51/218,007.27 = 55,457.00/x
  3. Step 3: Cross multiply
    145,438.51x = 218,007.27 × 55,457.00
  4. Step 4: Simplify right side
    145,438.51x = 12,090,030,282.14
  5. Step 5: Solve for x
    x = 12,090,030,282.14/145,438.51
  6. Step 6: Final answer
    x = 83,128.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.