Home / 145,734.16-218,437.14-74,457.40

Finding the Fourth Proportional to 145,734.16, 218,437.14 and 74,457.40

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Solution

The fourth proportional to 145,734.16, 218,437.14 and 74,457.40 is: 111,602.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,734.16 : 218,437.14 = 74,457.40 : x
  2. Step 2: Convert to fraction form
    145,734.16/218,437.14 = 74,457.40/x
  3. Step 3: Cross multiply
    145,734.16x = 218,437.14 × 74,457.40
  4. Step 4: Simplify right side
    145,734.16x = 16,264,261,507.84
  5. Step 5: Solve for x
    x = 16,264,261,507.84/145,734.16
  6. Step 6: Final answer
    x = 111,602.26

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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.