Home / 145,386.42-218,008.50-59,981.40

Finding the Fourth Proportional to 145,386.42, 218,008.50 and 59,981.40

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Solution

The fourth proportional to 145,386.42, 218,008.50 and 59,981.40 is: 89,942.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,386.42 : 218,008.50 = 59,981.40 : x
  2. Step 2: Convert to fraction form
    145,386.42/218,008.50 = 59,981.40/x
  3. Step 3: Cross multiply
    145,386.42x = 218,008.50 × 59,981.40
  4. Step 4: Simplify right side
    145,386.42x = 13,076,455,041.90
  5. Step 5: Solve for x
    x = 13,076,455,041.90/145,386.42
  6. Step 6: Final answer
    x = 89,942.75

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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.