Home / 145,875.90-218,818.71-40,686.06

Finding the Fourth Proportional to 145,875.90, 218,818.71 and 40,686.06

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Solution

The fourth proportional to 145,875.90, 218,818.71 and 40,686.06 is: 61,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,875.90 : 218,818.71 = 40,686.06 : x
  2. Step 2: Convert to fraction form
    145,875.90/218,818.71 = 40,686.06/x
  3. Step 3: Cross multiply
    145,875.90x = 218,818.71 × 40,686.06
  4. Step 4: Simplify right side
    145,875.90x = 8,902,871,164.18
  5. Step 5: Solve for x
    x = 8,902,871,164.18/145,875.90
  6. Step 6: Final answer
    x = 61,030.45

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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.