Home / 154,071.59-212,628.65-86,088.74

Finding the Fourth Proportional to 154,071.59, 212,628.65 and 86,088.74

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Solution

The fourth proportional to 154,071.59, 212,628.65 and 86,088.74 is: 118,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,071.59 : 212,628.65 = 86,088.74 : x
  2. Step 2: Convert to fraction form
    154,071.59/212,628.65 = 86,088.74/x
  3. Step 3: Cross multiply
    154,071.59x = 212,628.65 × 86,088.74
  4. Step 4: Simplify right side
    154,071.59x = 18,304,931,072.81
  5. Step 5: Solve for x
    x = 18,304,931,072.81/154,071.59
  6. Step 6: Final answer
    x = 118,807.96

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1.5x scale

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.