Home / 145,966.15-201,428.70-85,577.01

Finding the Fourth Proportional to 145,966.15, 201,428.70 and 85,577.01

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Solution

The fourth proportional to 145,966.15, 201,428.70 and 85,577.01 is: 118,093.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,966.15 : 201,428.70 = 85,577.01 : x
  2. Step 2: Convert to fraction form
    145,966.15/201,428.70 = 85,577.01/x
  3. Step 3: Cross multiply
    145,966.15x = 201,428.70 × 85,577.01
  4. Step 4: Simplify right side
    145,966.15x = 17,237,665,038.60
  5. Step 5: Solve for x
    x = 17,237,665,038.60/145,966.15
  6. Step 6: Final answer
    x = 118,093.58

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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.